:root {
  /* ── Latar & Permukaan ── */
  --bg: #0b1623;         /* Biru gelap tinta mushaf */
  --surface: #122033;    /* Permukaan card utama */
  --surface2: #1a2d44;   /* Permukaan dalam (select, box) */
  --border: #2a4060;     /* Garis batas */

  /* ── Aksen Utama: Hijau Zamrud Islami ── */
  --emerald: #2ecc8a;
  --emerald-light: #4ddba0;
  --emerald-dim: rgba(46,204,138,0.13);
  --emerald-border: rgba(46,204,138,0.28);

  /* ── Aksen Sekunder: Emas Ornamental ── */
  --gold: #d4a843;
  --gold-light: #f0c060;
  --gold-dim: rgba(212,168,67,0.14);
  --gold-border: rgba(212,168,67,0.32);

  /* ── Benar / Salah ── */
  --green: #2ecc8a;
  --green-dim: rgba(46,204,138,0.15);
  --red: #e05252;
  --red-dim: rgba(224,82,82,0.15);

  /* ── Teks ── */
  --text: #eef3f8;       /* Ivory / krem lembut */
  --muted: #7a9bb5;      /* Abu biru redup */

  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Plus Jakarta Sans', sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  top: -200px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(46,204,138,0.08) 0%, rgba(212,168,67,0.04) 55%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ─── PAGE SYSTEM ─── */
.page {
  display: none;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
  padding: 40px 16px 64px;
  position: relative;
  z-index: 1;
}
.page.active {
  display: flex;
  animation: pageIn 0.45s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.page.exit {
  animation: pageOut 0.28s ease forwards;
}

@keyframes pageIn {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pageOut {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-14px); }
}

/* ─── SHARED HEADER ─── */
.page-header {
  text-align: center;
  margin-bottom: 32px;
  width: 100%;
  max-width: 480px;
}

.arabic-title {
  font-family: 'Amiri', serif;
  font-size: clamp(2rem, 7vw, 2.8rem);
  color: var(--gold);
  line-height: 1.2;
  margin-bottom: 12px;
}

.page-title {
  font-size: clamp(1rem, 3.5vw, 1.1rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.45;
}

.page-desc {
  font-size: 0.83rem;
  color: var(--muted);
  font-weight: 500;
  line-height: 1.6;
}

.page-desc em {
  color: var(--gold);
  font-style: normal;
  font-weight: 700;
}

/* ─── HOME PAGE ─── */
#homePage { justify-content: center; padding-top: 10vh; }

.home-ornament {
  font-size: 2.8rem;
  margin-bottom: 12px;
  display: block;
  animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-6px); }
}

/* Range Card */
.range-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 18px;
  width: 100%;
  max-width: 480px;
  margin-bottom: 16px;
}

.range-card-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 14px;
}

.range-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.select-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.select-wrap label {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.select-wrap select {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 11px 10px;
  font-size: 0.82rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 500;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b949e' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  transition: border-color 0.2s;
  width: 100%;
}

.select-wrap select:focus {
  outline: none;
  border-color: var(--gold);
}

.range-summary {
  margin-top: 12px;
  background: var(--gold-dim);
  border: 1px solid var(--gold-border);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 0.77rem;
  color: var(--gold);
  font-weight: 600;
  text-align: center;
}

/* Start Button */
.start-btn {
  width: 100%;
  max-width: 480px;
  background: linear-gradient(135deg, var(--emerald) 0%, #27b579 100%);
  color: #04150f;
  border: none;
  border-radius: var(--radius);
  padding: 17px 28px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  letter-spacing: 0.04em;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 18px rgba(46,204,138,0.2);
}

.start-btn:hover {
  background: linear-gradient(135deg, var(--emerald-light) 0%, var(--emerald) 100%);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(46,204,138,0.35);
}

.start-btn:active { transform: translateY(0); }

/* ─── QUIZ PAGE ─── */
#quizPage { padding-top: 28px; }

.back-btn {
  align-self: flex-start;
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 8px;
  padding: 8px 14px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 22px;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 5px;
  width: 100%;
  max-width: 480px;
}

.back-btn:hover {
  border-color: var(--emerald);
  color: var(--emerald);
}

/* Stats bar */
.stats-bar {
  display: flex;
  gap: 10px;
  width: 100%;
  max-width: 480px;
  margin-bottom: 16px;
}

.stat-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 6px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  flex: 1;
  text-align: center;
  line-height: 1.3;
}

.stat-chip span {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 2px;
}

.stat-chip.correct span { color: var(--emerald); }
.stat-chip.wrong span   { color: var(--red); }
.stat-chip.streak span  { color: var(--gold); }

/* Quiz card */
.quiz-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 18px;
  width: 100%;
  max-width: 480px;
}

.q-type-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--emerald-dim);
  border: 1px solid var(--emerald-border);
  color: var(--emerald);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.question-text {
  font-size: clamp(1rem, 3.8vw, 1.15rem);
  font-weight: 700;
  line-height: 1.55;
  margin-bottom: 5px;
}

.question-sub {
  font-size: 0.77rem;
  color: var(--muted);
  margin-bottom: 20px;
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}

/* Single column on very small screens */
@media (max-width: 340px) {
  .options-grid { grid-template-columns: 1fr; }
}

.option-btn {
  background: var(--surface2);
  border: 1.5px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 13px 12px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.84rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: all 0.18s;
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 52px;
  word-break: break-word;
}

.option-btn:hover:not(:disabled) {
  border-color: var(--emerald);
  background: var(--emerald-dim);
  transform: translateY(-1px);
}

.option-btn:active:not(:disabled) { transform: translateY(0); }

.option-letter {
  width: 26px; height: 26px;
  min-width: 26px;
  border-radius: 6px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  font-weight: 800;
  transition: all 0.18s;
}

.option-btn.correct {
  border-color: var(--emerald);
  background: var(--emerald-dim);
  animation: correctPulse 0.35s ease;
}
.option-btn.correct .option-letter {
  background: var(--emerald); color: #04150f; border-color: var(--emerald);
}

.option-btn.wrong {
  border-color: var(--red);
  background: var(--red-dim);
  animation: shake 0.38s ease;
}
.option-btn.wrong .option-letter {
  background: var(--red); color: #fff; border-color: var(--red);
}

.option-btn.dim { opacity: 0.3; }
.option-btn:disabled { cursor: default; }

.card-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 18px 0;
}

.progress-text {
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  font-weight: 600;
}

/* ─── RESULT — Bottom sheet on mobile, modal on desktop ─── */
.result-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(8,17,32,0.92);
  backdrop-filter: blur(8px);
  z-index: 200;
  align-items: flex-end;
  justify-content: center;
}

.result-overlay.show {
  display: flex;
  animation: fadeIn 0.22s ease;
}

.result-sheet {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  padding: 32px 22px 44px;
  text-align: center;
  width: 100%;
  max-width: 520px;
  animation: sheetUp 0.38s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}

@media (min-width: 540px) {
  .result-overlay { align-items: center; padding: 24px; }
  .result-sheet {
    border-radius: 20px;
    animation: scaleUp 0.38s cubic-bezier(0.34, 1.4, 0.64, 1) both;
  }
}

.result-icon { font-size: 3rem; margin-bottom: 10px; display: block; }

.result-title {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.result-title.correct-title { color: var(--green); }
.result-title.wrong-title   { color: var(--red); }

.result-desc {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 18px;
}

.result-answer-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 20px;
  text-align: left;
}

.rab-label {
  font-size: 0.67rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 4px;
  font-weight: 700;
}

.rab-answer {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--emerald);
}

.try-again-btn {
  background: linear-gradient(135deg, var(--emerald) 0%, #27b579 100%);
  color: #04150f;
  border: none;
  border-radius: 10px;
  padding: 15px 28px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 0.92rem;
  font-weight: 800;
  cursor: pointer;
  width: 100%;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: all 0.2s;
  box-shadow: 0 4px 14px rgba(46,204,138,0.2);
}

.try-again-btn:hover {
  background: linear-gradient(135deg, var(--emerald-light) 0%, var(--emerald) 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(46,204,138,0.35);
}

/* ─── CONFETTI ─── */
.confetti-container {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 199;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: -10px;
  border-radius: 2px;
  animation: confettiFall linear forwards;
}

/* ─── KEYFRAMES ─── */
@keyframes fadeIn {
  from { opacity: 0; } to { opacity: 1; }
}
@keyframes sheetUp {
  from { opacity: 0; transform: translateY(48px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes scaleUp {
  from { opacity: 0; transform: scale(0.84); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes correctPulse {
  0% { transform: scale(1); } 50% { transform: scale(1.03); } 100% { transform: scale(1); }
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-5px); }
  40% { transform: translateX(5px); }
  60% { transform: translateX(-3px); }
  80% { transform: translateX(3px); }
}
@keyframes confettiFall {
  0%   { transform: translateY(0) rotate(0deg) translateX(0); opacity: 1; }
  80%  { opacity: 1; }
  100% { transform: translateY(110vh) rotate(720deg) translateX(var(--drift)); opacity: 0; }
}